import router from './router'
import store from './store'
import { getToken, setToken } from '@/utils/auth' // get token from cookie
import getPageTitle from '@/utils/get-page-title'

const whiteList = ['/login'] // no redirect whitelist

router.beforeEach(async (to, from, next) => {
  // set page title
  document.title = getPageTitle(to.meta.title)
  if (to.path === '/home' || to.path === '/') {
    const { token } = to.query
    if (token) {
      setToken(token)
      store.dispatch('user/setTokenAction', token)
    }
  }
  // determine whether the user has logged in
  const hasToken = getToken()

  if (hasToken) {
    if (to.path === '/login') {
      // if is logged in, redirect to the home page
      next({ path: '/' })
    } else {
      // determine whether the user has obtained his permission roles through getInfo
      store.dispatch('user/getInfo')
      next()
    }
  } else {
    if (whiteList.indexOf(to.path) !== -1) {
      // in the free login whitelist, go directly
      next()
    } else {
      // other pages that do not have permission to access are redirected to the login page.
      next(`/login?redirect=${to.path}`)
    }
  }
})
